The Tamiya 4-speed crank-axle gearbox has four possible gear ratios, including the highest gear ratio of Tamiya's gearbox series, 5402:1, as well as 126:1, 441:1, and 1543:1. This gearbox also features a worm gear, which locks the output shaft when the motor is not turning. A clutch gear prevents the gearbox from destroying itself in case the output shaft gets stuck. The kit comes with all parts necessary to build the gearbox in any of the four possible configurations. SpecsTypical Operating...

Offering a double gearbox perfect for use in amateur robot contests, this gearbox is suitable for use with remote controlled robots. Choice of 4 gear ratios, offers emphasis on speed or power to suit your needs. Left/right independent design means you can set different gear ratios for either side.Suitable for use with remote controlled robots.Left/right independent design means you can set different gear ratios for either side. This set can be assembled for one of four different gear ratios:...

The Tamiya 72007 4-Speed High-Power Gearbox kit includes one brushed DC motor and all the gears and parts to build any of the four possible gear ratio configurations: 39.6:1, 47.6:1, 61.7:1, 74:1. The four gear ratio options give you the flexibility to choose the best speed and torque for your project.FeaturesGear ratio can be easily adjusted by changing the motor pinion (10T, 12T), spur gear position, and altering the middle and final gear attachment position4mm dia. threaded driveshaft...

The Tamiya 72008 4-Speed Worm Gearbox kit includes one brushed DC motor and all the gears and parts to build any of the four possible gear ratio configurations: 84:1, 216:1, 555.4:1, 1428.2:1. The four gear ratio options give you the flexibility to choose the best speed and torque for your project.Features4mm dia. threaded driveshaft includedIncluded gearbox attachment parts can be easily installed at a choice of two attachment positionsGearbox is compatible with other Education Construction...

Is it a car, or is it a mousetrap, you decide. The end result is lesson in converting potential energy into kinetic energy with our 4M Mousetrap Racer Kit. Kit includes detailed instructions and all the necessary parts. Science in action!Part car, part mousetrapThis kit teaches a lesson in converting potential energy into kinetic energyKit includes detailed instructions and all necessary partsFun and educational0-TYSM3779

This precision 6-Speed Gear Box, High Efficiency, is a compact unit with a variety of gear ratio options to choose from. Several crank arms and a RE-260 motor are included. This versatile, high-efficiency gearbox lets you build one of six different gear ratios so you can select the best combination of speed and torque. Whatever your application, chances are that one of the configurations will do the job. A clutch gear protects the gearbox in high-gear-ratio configurations so that the gearbox...

Enroll in CHEM C1000 and prepare for a lifetime of fascination with this essential science through 125 diverse experiments. Start with an introduction to the field of chemistry and famous chemists.Set up your lab space and learn how to safely handle the lab equipment and chemicals.Professional quality equipment helps you make the most of your chemistry experiments.Investigate chemistry in the kitchen by experimenting with sugar, honey, starch, eggs and proteins, fatty acids, and...

Tamiya 70121 Pulley Unit Set is similar in function to a gear box and contains parts compatible with other Tamiya products. The pulleys can be mounted using the base and pulley mounts included with the set and driven with the included motor.The set includes seven pulleys of various sizes along with an assortment of single and double bushings that make the pulleys compatible with round and hexagonal shafts of both 3 mm and 2 mm diameters. Depending on the bushing, the pulleys can either idle on...

Spend hours of learning fun while developing knowledge, thinking and learning about electronics. This kit is one in a series of 4 of the hottest high-tech experiments for children. You can step into the amazing world of electrical energy with this Science Time™series. They make it easy to learn, easy to build and easy to understand the basics of electronics.This kit includes:1 swing plate1 swing top2 swing legs2 wires1 magnet1 metal plate1 switch plate1 see saw plate2 see saw legs1 metal pin5...

Conduct more than 60 electrifying experiments with circuits and magnetic contraptions to learn about electricity and magnetism, and how these two fundamental properties are closely related. Children eight and up can safely and easily experiment with electric current and magnetic fields using the colorful snap-together blocks and components in this hands-on kit. Build series and parallel circuits to light up a light bulb. Experiment with push buttons and on-off switches. Assemble circuits that...

Have fun building this mini generator. Turn a simple toy motor to become a generator which converts hand motion to electric energy and powers a light bulb. No battery, no pollution, just amazement. The generator could be used as an awesome energy torch. Contents: 1 LED Lamp with holder and wires connected, 1 toy motor, 2 gears, 1 set dynamo torch casing accessories (assembly required), 1 transparent torch cover, screws, detailed Instructions with fun facts.0-TYSM3645

Learn the science behind the Power! Enviro-Battery uses natural materials like mud, lemons, and water to power a light bulb, a watch, and activate a music chip. An amazing, environmentally friendly science kit that includes detailed instructions so you can create many unusual batteries with fruit juices, vegetables, coins, utensils, and more! 0-TYSM3644

This Green Science Windmill Generator is an enjoyable and interactive kit, which will guide the user through the design and build of a windmill generator. The movement of wind will turn the windmill and power an LED light. Building this amazing generator powered by wind also increases awareness of the value of using renewable free energy sources. You can help save the Planet by recycling a plastic bottle to support your wind generator. 0-TYSM3649

Highly efficient, this motor and gearbox assembly works well when extra torque is needed. Two gear ratios are possible, and a RE-260 motor is included.Great for a high torque drive wheel. Some assembly required.60 x 28 x 41mm80mm long shaftWeight: 1.9 oz.Current: 1.0A @ 3VRatios: 41.7:1 and 64.8:1RPM: 250 and 160 @3VTorque (g-cm): 670 and 1040 @ 3Vcan be run safely up to 8.4V0-72003

When you need a little more speed than torque, this is the gearmotor for you. Two gear ratios are possible, and a RE-260 motor is included. Several styles of crank arms are included.Great for a high speed drive wheel. Some assembly required.52 x 28 x 41mm80mm long shaftWeight: 2.5 oz.Current: 1.0A @ 3VRatios: 11.6:1 and 18:1RPM: 905 and 583 @3VTorque (g-cm): 174 and 270 @ 3V5mm round output shaftcan be run safely up to 8.4V0-72002

This is a High Efficiency Worm Gear Box Assembly Kit from the Technicraft Series by Tamiya.FEATURESCan produce extremely low speeds of rotation and is used for gearreduction.Allows 2 gear ratios, 216.1:1 and 336.1:1 to be selected.Gear case is injection molded and gears are polyacetal resin forreducing mechanical noise.Accepts 140 or 260 type motors.Included motor operates on 3-4.5V.Pictorial instruction sheet included.INCLUDESOne Technicraft High Efficiency Worm Gear Box Assembly...

This is a Large Pulley Set from Tamiya.FEATURESThis is the large pulley from Tamiya's Pulley Unit SetPackage contains two pulleys.Contains white and black plastic parts attached to sprues.Includes screws, bushings and belts (rubber bands).Structure of pulley is kept simple for maintenance purposes likereplacing the belt, if needed.Pulley rotates freely.Can be used singly or together.Designed for fairly small and simple models.Reverse rotation of pulley is possible.Pictorial instructions...

The mini-motor gearbox kit from Tamiya makes it easy to get a small robot or plastic model moving. The kit includes one motor and all the gears and parts to build any of the eight possible gear ratio configurations. The eight gear ratio options give you the flexibility to choose the best speed and torque for your project. There are two possible output axle locations (only one output location is possible for any given ratio).50.3 x 18 x 20mm60mm shaft (3mm hex)Operating Voltage: 3VRatio...

The mini-motor gearbox kit from Tamiya makes it easy to get a small robot or plastic model moving. The kit includes one motor and all the gears and parts to build any of the four possible gear ratio configurations. The four gear ratio options give you the flexibility to choose the best speed and torque for your project.30 x 24 x 20mm60mm shaft (3mm hex)Operating Voltage: 3VRatio options: 71.4:1, 149.9:1, 314.9:1, 661.2:1No-load Speed at 3V: 8400 rmpNo-load Current at 3V: 60 mAStall Current at...

The mini-motor gearbox kit from Tamiya makes it easy to get a small robot or plastic model moving. The kit includes one motor and all the gears and parts to build any of the twelve possible gear ratio configurations. The twelve gear ratio options give you the flexibility to choose the best speed and torque for your project.30 x 31.7 x 17mm60mm shaft (3mm hex)Operating Voltage: 3VRatio options: 4.6:1, 5.1:1, 9.7:1, 10.8:1, 20.4:1, 22.6:1, 42.8:1, 47.5:1, 89.9:1, 99.8:1, 188.7:1, 209.7:1No-load...

This is the 7in1 Rechargeable Solar Transformers Kit from OWI.Suitable for Ages 10 & Older.FEATURESInnovative solar science kit that encourages children to exercisetheir sense of creativity and imaginationSnap together plastic parts (no screws, tools required), solarpanel and accessories included7 different modules: 2 power charging stations and 5 differentvehiclesTransforming rechargeable station has 2 output plugs: one forsolar recharging and the other for battery rechargingBattery charging...

This is the Salt Water Fuel Cell Car Kit from OWI®.Suitable for Ages 13 & Older.Skill level: Intermediate ExperienceFEATURESPowered by salt water and fueled by creativitySalt Water Fuel Cell Car gives children a chance to learn aboutnew forms of clean energy, while building and powering theirvery own toyAfter activating the fuel cell module with a saltwater mixture,the magnesium metal sheet (3 sheets included) can operate thecar for about 5-7 hours continuouslyIf you want to park the...

This Planetary Gear Box is a VERY durable, precise, high quality gearbox with a RE-260 motor built into the gearbox. A wide range of gear ratios can be attained, depending on how many stages you decide to add (8 different possibilities!). Two kinds of crank arms are supplied for a wider range of functions.Buy multiple motor kits and you can combine stages to further increase torque and decrease speed. 3 kits in series would provide 1 shaft revolution every 4 days! Great for experimenting with...

FEATURESSlow motion controls for smooth trackingEasy to assemble 127mm German Equatorial reflectorIncludes two 1.25" eyepieces3x Barlow lens triples the magnifying power of each eyepieceIncludes CD-ROM "The Sky" Astronomy SoftwareFinderscope: 5x24Pre-assembled aluminum tripod and accessory trayOVERVIEWThe Celestron PowerSeeker series of telescopes is designed to give the first-time buyer the perfect combination of quality, value, features and power. Offering exceptional value, these telescopes...

The PowerSeekers come with all coated glass optical components with for enhanced image brightness and clarity. The Newtonian reflectors offer larger aperture and greater light gathering power needed to resolve the faint detail of hundreds of deep-sky and other celestial objects.All PowerSeekers come on either sturdy equatorial mounts for tracking the sky, or collapsible altazimuth mounts suitable for terrestrial viewing as well as astronomical use.The PowerSeekers come with a full range of...

"Celestron PowerSeeker telescopes are a great way to open up the wonders of the Universe to the aspiring astronomer. The PowerSeeker series is designed to give the first-time telescope user the perfect combination of quality, value, features and power. Amateur astronomy is a great family hobby that can be enjoyed year round, and Celestron's PowerSeekers are the ideal choice for an affordable and high quality telescope that will provide many hours of enjoyment for the entire family....

The 3-speed crank-axle gearbox looks very much like half of the twin-motor gearbox; it even uses the same gears. Gear it for power or speed. A FA-130 motor is included.Great for a high torque or high speed adjustable drive wheel or lifter arm. Get 2 for a two-wheel drive bot and cut the shaft for whatever side you need. Some assembly required.Weight: 1.4 oz.Ratios: 17:1, 58:1 or 204:1Current: 1.0A @ 3Vcan be run safely up to 8.4V0-70093

The Tamiya 70140 small pulley set contains eight pulleys of different diameters for use with other Tamiya products. The included assortment of bushings allow the pulleys to be mounted on various shaft types with the pulley either idling on the shaft or rotating with it.Included:Two 30 mm-diameter pulleysTwo 20 mm-diameter pulleysFour 11 mm-diameter pulleysTwo single and two double 2 mm hexagonal bushingsTwo single and two double 3 mm hexagonal bushingsTwo single and two double 3.1 mm round...

This is an assembly kit of a robot that generates electricity by winding up the hand unit (generator) to create electricity to the motor. The motor is run by electricity, but without the need for batteries since all power is created by the supplied hand crank. Crank walking mechanism transmits movement of crank to arms and making the robot walk, with arms pushing like a Sumo Wrestler. Connection between the generator unit and walking mechanism is ensured by a wire harness and connector....

This is an assembly kit of a 4WD model which appears to "walk" as the 4 wheels on its corners mover vertically, and climbs over obstacles up to 50mm with ease.Wheel Walker assembly kit.Kit includes everything needed for easy snap-fit/screw-together assembly. Simple wiring is required to complete the assembly. (No Soldering required)Choose from 3 different chassis angle settings.Requires one AA battery (sold separately)0-TAMX0210